Balanced closing device for water-conduits



F. GREIVIMELS. ALAIIIcED CLOSING DEVICE Fon WATER coNDuI APPLICATION FILED MAY28, 1920.

Patented Oct. 4, 1921.

M Hesse:

rss

lerrar Erica.

PORATION, 0]?NEW YORK, N. Y.,

A ooarona'rrolv 0E NEW YORK.

EAEANCEE crosrlve DEVICE Eon WATER-coivnnrrs.

Application med May as,

To afl whom it may concern:

Be it known that I, FELIX GREMMELS, a citizen of the German Republic, and resident of Mannheim, in the German Republic, have invented a certain new and useful Balanced Closing Device for Vater-Conduits, of which the following is a specification.

This invention relates in general to a balanced closing device which is intended for use in all such cases where a water-column exerts a high pressure upon the surfaces of the valve-disks and renders thus opening and closing the valves diflicult. In particular my improved balanced closing device is intended for use in connection with water-conduits, such as by-pass conduits of chambersluices, bottom outlets of barrages, and the like, and it consists of disk-valves which are arranged co-axially, or opposite to one another respectively, and the disks of which are connected with each other by stays, z'. e. by a plurality of such ones, at least three whereby the effect of the water-pressure, z'. e. of the cause of the resistance to motion, is done away with. Means are provided for axially moving the disks of the valves, viz. in the direction of the stays, said means being located in the port between said disks, as is all more fully described hereinafter.

In order to make my invention more clear,

. I refer to the .accompanying drawings, in

which similar letters denote similar parts throughout the several views, and in which:

Figure 1 shows by way of example a Vertical section through one form of execution of a balanced closing device constructed according to my invention; and

Fig. 2 is a horizontal section through the The valves consist of disks c and c and of seats d and d which latter may be fastened to the masonry by concrete or the like. In the example shown it is assumed that a is the inlet port to the water-conduit .and b are outlet ports from the same, the port a being supposed to be vertical and the ports Z2 b being supposed to be horizontal and united with each other in a short distance from the closing device as may be imagined from the lower part of Fig. 2. Both disks 'o' c are represented in full lines in that position in which they separate the port a from the ports b b, or reversely. They .are

Specification of Letters Patent.

atented Uet. d, i921..

1920. serial No. 385,081.

connected with each other by a plurality of stays e (.at least three, but preferably more, for instance four, as in the example shown) supported and guided by standards f aiiixed to the bottom of the port a. Thus, also the disks 0 c are ,axially guided by said standards with respect to the seats Z CZ.

A rack g extending parallel to the stays e is supported at both ends in the disks o c, and a cog-wheel It keyed to a vertical shaft i supported by a foot bearing ,7c meshes with said rack. By rotating the shaft z' iny the direction of the arrow (Fig. l), the disks c o are moved from the position shown in full lines to the position shown in dotted lines in which then the port a will be connected with the ports b o.

The disks c c are of equal area, and the pressure of the water column in the port a upon the diskc is equal tothat upon the disk o, and reversely. Thus, the pressure exerted upon the disk c is balanced by that exerted upon the disk c, and reversely. In other words the stays c are subjected to tensile strain by the pressing power acting upon the disks c o from the port a. Tf, however, the direction of the water is reverse to that indicated by the arrow in both figures, that ris to say, if the water passes from the ports b to and into the port a, then the stays e are subjected to compressive strain, as is clear without a detailed explanation.

Having now described my invention, what I desire to secure by a patent of the United tates is: Y

l. 1n a balanced closing device for waterconduits, in combination: two co-axially arranged disk-valves; stays connecting the disks of them with each other; guides for said stays; .and means for actuating said disks; said actuating means being arranged between said valves.

2. In a balanced closing device for waterconduits, in combination: two co-axially arranged valve-disks, means rigidly connecting the disks of same; ,a rack connected with said' disks; a cog-wheel meshing with said rack; and a shaft to which said cog-wheel is afiixed; and means for turning said shaft.

3. In a balanced closing-device for waterconduits, in combination: two co-axially arranged disk-valves; a port between them; two other ports at the other sides of said valves; stays rigidly connecting the disks of In testimony whereof I aix my signature said Valves with each other; guides for said in presence of two witnesses.

stays Aa rack connected with the said disks' a, coga-Wheel meshing with said rack; and ai FELIX GREMMELS shaft to which said cog-Wheel is aixed; said Witnesses:

shaft extending through said first-mentioned R. MORELLET,

port. g Y Mw- .1 FREDERICK LAINN. 

